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Home/Military Standard parts/Seals & Fittings/FSC 5331
Category // FSC 5331 · 53,078 items

O-Ring

Round-section sealing rings used in grooves to seal fluid and gas connections; every item filed here is an O-ring.

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53,078 items

  1. O-RING NSN 5331-01-485-6395 P/N ST1946-152 · ST1946-152 · ST1946-152 · ST1946-152 · +2 more
  2. O-RING NSN 5331-01-485-6394 P/N ST1946-153 · ST1946-153 · ST1946-153 · ST1946-153 · +2 more
  3. O-RING NSN 5331-01-484-6954 P/N 4680-118 · MIL-R-83248/1 · 4680-118 · MS83248/1-118 · +2 more
  4. O-RING NSN 5331-01-483-1088 P/N M83485/1-007 · M83485/1-007 · 10370029 · M83485/1-007 · +2 more
  5. O-RING NSN 5331-01-483-0833 P/N M83485/1-260 · AMS-R-83485 · M83485/1-260 · M83485/1-260 · +2 more
  6. O-RING NSN 5331-01-483-0822 P/N M83485/1-237 · AMS-R-83485 · M83485/1-237 · SAE-AS83485 · +2 more
  7. O-RING NSN 5331-01-481-3964 P/N A9A01202-00616 · A9A01202-00676 · 5331PL1696691 · 5331PL1696664 · +2 more
  8. O-RING NSN 5331-01-481-2514 P/N 02/911141 · 3678925 · 3678925 · 02/911141 · +2 more
  9. O-RING NSN 5331-01-480-6479 P/N AS568A-013-70BN · AS568A-01-70BN · AS568A-013-70BN · AS568A-013-70BN · +2 more
  10. O-RING NSN 5331-01-480-1813 P/N M83485/1-132 · M83485/1-132 · 5331PL2199724 · M83485/1-132 · +2 more
  11. O-RING NSN 5331-01-479-3248 P/N AS3581-238CP · 2643-773-01 ITEM 51CP · 845-7108793 ITEM 51CP · M83248/2-238CP · +2 more
  12. O-RING NSN 5331-01-479-3242 P/N AS3581-218CP · M83248/2-218CP · 845-7108793 ITEM 50CP · 2643-773-01 ITEM 50CP · +2 more
  13. O-RING NSN 5331-01-479-0630 P/N 2-025N0552 · 712320X · 16KP115 · 16KP115 · +2 more
  14. O-RING NSN 5331-01-478-8477 P/N AW180-113 · V1D10862 ITEM 19 · M83461/1-113CP · M83461/1-113 · +2 more
  15. O-RING NSN 5331-01-478-7826 P/N 3-910E515-80CP · 3-910E515-80 CP · 3-910E515-80 · 21-198826 FIND 141 · +2 more
  16. O-RING NSN 5331-01-478-5191 P/N 1205G761 · 1205G761 · 5MB193 · TDA/1205G761 · +2 more
  17. O-RING NSN 5331-01-478-4871 P/N 04814-50600 · 185-5743 · 5331PL0644460 · 04814-50600 · +2 more
  18. O-RING NSN 5331-01-477-7385 P/N M83485/1-234 · M83485/1-234 · 5331PL2173857 · M83485/1-234 · +2 more
  19. O-RING NSN 5331-01-477-2840 P/N 585-6404842-49 · 14869113 · 522-7325823 ITEM 6 · 7325823-6 · +2 more
  20. O-RING NSN 5331-01-476-2455 P/N 94115K492 · AS568-920/AS3209 · 61-8664 · 61-8664 · +2 more
  21. O-RING NSN 5331-01-476-2415 P/N AMS 3209 · AS568-155 · 61-8625 · AMS 3209 · +2 more
  22. O-RING NSN 5331-01-475-7812 P/N NAS1611-363 · NAS1613 · NAS1613-363 · 13857N18-456A · +2 more
  23. O-RING NSN 5331-01-475-6342 P/N 7504201AF · 5331PL1019671 · 7504201AF · P998155 · +2 more
  24. O-RING NSN 5331-01-475-6224 P/N 750420501 · 750420501 · 750420501 · P998013 · +2 more

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Browsing stops at page 500 of this class — past that, search by number. Send a whole list →

Questions about O-Ring

What does federal supply class 5331 cover?

Federal supply class 5331 covers O-rings, the round-section sealing rings used in grooves to seal fluid and gas connections. Every item filed here is an O-ring.

How is a part in federal supply class 5331 identified?

Because every item in the class has the same item name, the NSN is what tells one O-ring from another. Each NSN record carries the characteristics on file for that exact ring and the part numbers cross-referenced to it, so a buyer can work from an MS or AS number, a manufacturer number, or a drawing callout. Each item in the class has its own National Stock Number (NSN) record, listed above.

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